TY  - RPRT
TI  - Spontaneous Wave Pattern Formation in Vibrated Granular Materials.
AU  - KM Aoki
AU  - T Akiyama
PY  - 1996
DO  - 10.1103/physrevlett.77.4166
UR  - https://pubmed.ncbi.nlm.nih.gov/10062465/
ID  - 10062465
ER  -